Patent US3579699A successfully refreshed from Google Patents.
US3579699A
Expired / Lapsed
US
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Suction cleaner nozzle adjustment
Assignee: Hoover Co
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Filing: 1969-02-20
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Granted: 1971-05-25
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Expires: 1989-02-20
Abstract
Abstract IN AN UPRIGHT SUCTION CLEANER, MOVEMENT OF THE PROPELING HANDLE TO ITS REST POSITION REISES THE NOZZLE FROM ONE OF A PLURALITY OF SELECTED OPERATIVE POSITIONS TO AN INOPERATIVE POSITION AND RENDERS A NOZZLE ADJUSTING DEVICE INEFFECTIVE, AND MOVEMENT OF THE HANDLE FROM ITS REST POSITION RENDERS THE NOZZLE ADJUSTING DEVICE EFFECTIVE TO REPOSITION THE NOZZLE TO ANY ONE OF THE PLURALITY OF POSITIONS SELECTED PRIOR TO MOVEMENT OF THE HANDLE TO ITS REST POSITION.
Inventors
- 👤 Jerry L Balzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:50
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |